Periodic Table Intro

Front

What is the periodic table?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number, where elements with similar properties are grouped together.

Front

What are periods in the periodic table?

Back

Horizontal rows in the periodic table that indicate the number of electron shells an element has.

Front

What are groups in the periodic table?

Back

Vertical columns in the periodic table that group elements with similar chemical properties.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a compound?

Back

A substance formed when two or more elements chemically bond together.

Front

What is the significance of group 1 elements?

Back

They are known as alkali metals and are highly reactive, especially with water.

Front

What is the significance of group 6 elements?

Back

They are known as chalcogens and include oxygen, which is essential for life.

Front

What is the difference between metals and nonmetals?

Back

Metals are typically shiny, conductive, and malleable, while nonmetals are dull, insulative, and brittle.

Front

What is the role of neutrons in an atom?

Back

Neutrons contribute to the atomic mass and stabilize the nucleus, but do not affect the element's chemical properties.